What is the difference between an Hfr strain and an F-prime strain of Escherichia coli?
A) The F-prime strain is not able to convert the recipient strain to F⁺.
B) The F-prime strain is able to transfer any gene on the chromosome to the recipient cell.
C) The F-prime strain has an F⁻ phenotype.
D) The Hfr strain is able to transfer more genes to the recipient than the F-prime strain.
E) The Hfr strain is unable to mate with an F⁻ strain.
Correct Answer:
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